:root{
  --nav:#1E1F22;--side:#2B2D31;--bg:#313338;--bg2:#2B2D31;--hover:rgba(78,80,88,.3);--sel:rgba(78,80,88,.6);
  --input:#383A40;--text:#DBDEE1;--head:#F2F3F5;--muted:#949BA4;--line:#1F2023;--card:#232428;--pill:#fff;
  --indigo:#6366f1;--rose:#f43f5e;--emerald:#10b981;--link:#00A8FC;--mention:rgba(88,101,242,.3);--mtext:#C9CDFB;--msgh:rgba(2,2,2,.06);
}
[data-theme=light]{
  --nav:#E3E5E8;--side:#F2F3F5;--bg:#fff;--bg2:#F2F3F5;--hover:rgba(78,80,88,.08);--sel:rgba(78,80,88,.16);
  --input:#EBEDEF;--text:#313338;--head:#060607;--muted:#5C5E66;--line:#E3E5E8;--card:#fff;--pill:#1c1917;--mtext:#4752C4;--msgh:rgba(2,2,2,.03);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font:15px/1.4 "gg sans","Noto Sans","Segoe UI",system-ui,-apple-system,"Noto Naskh Arabic",sans-serif;background:var(--bg);color:var(--text);overflow:hidden;-webkit-text-size-adjust:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:var(--text);background:var(--input);border:0;border-radius:4px;padding:10px 12px;width:100%;outline:none}
select{cursor:pointer}
:focus-visible{outline:2px solid var(--indigo);outline-offset:1px}
[hidden]{display:none!important}
.ic{width:20px;height:20px;flex-shrink:0}
.ibtn{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;color:var(--muted);flex-shrink:0}
.ibtn:hover{color:var(--text);background:var(--hover)}
.b{background:var(--indigo);color:#fff;padding:9px 16px;border-radius:4px;font-weight:600;font-size:14px;white-space:nowrap}
.b:hover{filter:brightness(1.1)}.b:disabled{opacity:.5;cursor:not-allowed}
.b.red{background:var(--rose)}.b.ghost{background:none;color:var(--text)}.b.ghost:hover{text-decoration:underline;filter:none}.b.wide{width:100%}.b.sm{padding:6px 10px;font-size:13px}.b.grey{background:var(--sel);color:var(--text)}

/* login */
#login{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:16px;background:radial-gradient(1200px 600px at 20% 10%,#5865f2 0,#3b3fa8 45%,#1E1F22 100%)}
.lbox{background:var(--bg);padding:32px;border-radius:8px;width:100%;max-width:440px;box-shadow:0 8px 30px #0006}
.llogo{width:56px;height:56px;border-radius:16px;background:var(--indigo);margin:0 auto 14px}
.lbox h1{font-size:24px;text-align:center;color:var(--head);margin-bottom:6px}
.lbox p{color:var(--muted);text-align:center;margin-bottom:22px}
.lbox label{display:block;font-size:12px;font-weight:700;color:var(--muted);margin-bottom:8px}
.lbox label.chk{display:flex;gap:8px;align-items:center;font-weight:500;font-size:13px;margin:12px 0 16px}
.lbox label.chk input{width:auto}
.tokrow{display:flex;gap:6px;align-items:center}
.lerr{color:var(--rose);font-size:13px;margin-top:12px;min-height:18px;text-align:center}

/* shell */
#app{display:flex;height:100%;height:100dvh}
#left{display:flex;flex-shrink:0;height:100%}
#rail{width:72px;background:var(--nav);display:flex;flex-direction:column;align-items:center;padding:12px 0;gap:8px}
.rlist{flex:1;width:100%;overflow-y:auto;display:flex;flex-direction:column;align-items:center;gap:8px;scrollbar-width:none}
.rlist::-webkit-scrollbar{display:none}
.sep{height:2px;width:32px;background:var(--sel);border-radius:2px;flex-shrink:0}
.rn{position:relative;display:flex;align-items:center;width:100%;justify-content:center;flex-shrink:0}
.rn .pill{position:absolute;left:0;width:4px;height:8px;background:var(--pill);border-radius:0 4px 4px 0;transition:height .15s}
.rn:hover .pill{height:20px}.rn.on .pill{height:36px}
.rico{width:48px;height:48px;border-radius:24px;background:var(--bg);color:var(--text);display:flex;align-items:center;justify-content:center;font-weight:600;overflow:hidden;transition:border-radius .15s,background .15s}
[data-theme=light] .rico{background:#fff}
.rico img{width:100%;height:100%;object-fit:cover}
.rn:hover .rico,.rn.on .rico{border-radius:16px}
.rn.on .rico{background:var(--indigo);color:#fff}
.rn:hover .rico.home{background:var(--indigo);color:#fff}
.rn.add .rico{color:var(--emerald)}.rn.add:hover .rico{background:var(--emerald);color:#fff}
.rbot{display:flex;flex-direction:column;align-items:center;gap:10px;padding-top:6px}
.rav{width:48px;height:48px;border-radius:24px;object-fit:cover}
#sidebar{width:240px;background:var(--side);display:flex;flex-direction:column;min-width:0}
.shead{height:48px;padding:0 14px;display:flex;align-items:center;gap:8px;font-weight:700;color:var(--head);border-bottom:2px solid var(--line);box-shadow:0 1px 2px #0002;width:100%;text-align:left;flex-shrink:0}
button.shead:hover{background:var(--hover)}
.shead span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.slist{flex:1;overflow-y:auto;padding:8px 8px 12px}
.cat{display:flex;align-items:center;gap:2px;padding:16px 4px 4px;font-size:12px;font-weight:700;color:var(--muted);cursor:pointer;text-transform:none}
.cat:hover{color:var(--text)}
.cat .ic{width:12px;height:12px}.cat span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat.shut .ic:first-child{transform:rotate(-90deg)}
.ch{group:x;display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:6px;margin-bottom:2px;color:var(--muted);cursor:pointer;font-weight:600;font-size:14.5px}
.ch span.n{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ch:hover{background:var(--hover);color:var(--text)}.ch.on{background:var(--sel);color:var(--head)}
.ch.voice{opacity:.8}
.ch .chact{display:none;gap:2px}.ch:hover .chact{display:flex}
.ch .chact .ibtn{width:20px;height:20px}.ch .chact .ic{width:14px;height:14px}
.ch.dm img{width:32px;height:32px;border-radius:50%;margin:-2px 0}
.empty{color:var(--muted);text-align:center;padding:28px 16px;font-size:13px}
.ubar{height:54px;background:var(--card);display:flex;align-items:center;gap:8px;padding:0 8px;flex-shrink:0}
[data-theme=light] .ubar{background:#EBEDEF}
.ubar img{width:32px;height:32px;border-radius:50%}
.ubar .u{flex:1;min-width:0;line-height:1.15}
.ubar .u b{display:block;font-size:13.5px;color:var(--head);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ubar .u small{font-size:11px;color:var(--muted)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--muted);margin-right:5px}.dot.ok{background:#23a559}
#chat{flex:1;min-width:0;display:flex;flex-direction:column;position:relative}
#chead{height:48px;display:flex;align-items:center;gap:8px;padding:0 12px;border-bottom:2px solid var(--line);flex-shrink:0;font-weight:700;color:var(--head)}
#chead .ic{color:var(--muted)}#chead .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#chead .tp{color:var(--muted);font-weight:400;font-size:13px;border-left:1px solid var(--sel);padding-left:10px;margin-left:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
#chead .sp{flex:1}
#chead img.hav{width:28px;height:28px;border-radius:50%}
.mob{display:none}
#msgs{flex:1;overflow-y:auto;padding-bottom:12px}
.welcome{padding:16px 16px 8px}
.welcome .big{width:75px;height:75px;border-radius:50%;background:var(--sel);display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:8px}
.welcome .big .ic{width:48px;height:48px;color:#fff}
.welcome h2{font-size:30px;color:var(--head)}.welcome p{color:var(--muted);font-size:14px;margin-top:4px}
.dsep{display:flex;align-items:center;gap:8px;margin:18px 16px 6px;color:var(--muted);font-size:12px;font-weight:600}
.dsep::before,.dsep::after{content:"";flex:1;height:1px;background:var(--sel)}
.m{position:relative;padding:2px 48px 2px 72px;min-height:22px}
.m.first{margin-top:16px;padding-top:2px}
.m:hover{background:var(--msgh)}
.m .av{position:absolute;left:16px;top:2px;width:40px;height:40px;border-radius:50%;cursor:pointer;object-fit:cover}
.m .av:hover{filter:drop-shadow(0 1px 3px #0006)}
.m .h{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.m .un{font-weight:600;color:var(--head);cursor:pointer}.m .un:hover{text-decoration:underline}
.m .tag{background:var(--indigo);color:#fff;font-size:10px;font-weight:700;padding:1px 5px;border-radius:3px}
.m .ts{font-size:12px;color:var(--muted)}
.m .tm{position:absolute;left:0;width:72px;text-align:center;font-size:10px;color:var(--muted);top:5px;visibility:hidden}
.m:hover .tm{visibility:visible}
.m .c{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}
.m .c.sys{color:var(--muted);font-style:italic}
.m .ed{font-size:10px;color:var(--muted);margin:0 4px}
.m .rpl{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);margin:0 0 2px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;position:relative}
.m .rpl img{width:16px;height:16px;border-radius:50%}.m .rpl b{color:var(--text)}
.m .rpl .ic{width:14px;height:14px}
.m a{color:var(--link);text-decoration:none}.m a:hover{text-decoration:underline}
.m code{background:var(--card);padding:1px 5px;border-radius:3px;font-size:13px;font-family:ui-monospace,Menlo,Consolas,monospace}
.m pre{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:8px 10px;margin:4px 0;white-space:pre-wrap;font:13px ui-monospace,Menlo,Consolas,monospace}
.m blockquote{border-left:4px solid var(--sel);padding-left:10px;display:block}
.m .hd{font-size:20px;font-weight:700;color:var(--head);display:block}
.m img.em{height:22px;width:22px;vertical-align:-5px}
.mt{background:var(--mention);color:var(--mtext);border-radius:3px;padding:0 3px;font-weight:500;cursor:pointer}
.spoiler{background:#202225;color:transparent;border-radius:3px;cursor:pointer}.spoiler.on{background:var(--card);color:inherit}
.att{margin-top:4px;display:block}
.att img,.att video{max-width:min(400px,100%);max-height:320px;border-radius:6px;display:block;cursor:zoom-in}
.att audio{max-width:100%}
.file{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:10px 12px;max-width:420px;margin-top:4px}
.file b{color:var(--link);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file small{color:var(--muted);display:block}
.emb{border-left:4px solid var(--sel);background:var(--bg2);border-radius:4px;padding:8px 12px 10px;margin-top:4px;max-width:520px;overflow:hidden}
.emb .ea{font-size:13px;font-weight:600;margin-bottom:4px}.emb .et{font-weight:700;color:var(--head)}.emb .edsc{font-size:14px;white-space:pre-wrap}
.emb .ef{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px;margin-top:6px;font-size:14px}.emb .ef b{display:block;font-size:13px;color:var(--head)}
.emb img.ei{max-width:100%;border-radius:4px;margin-top:8px;cursor:zoom-in}.emb .eft{font-size:12px;color:var(--muted);margin-top:8px}
.stk{width:160px;height:160px;margin-top:4px}
.rxs{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}
.rx{display:inline-flex;align-items:center;gap:5px;padding:2px 7px;background:var(--bg2);border:1px solid transparent;border-radius:8px;font-size:14px}
.rx:hover{border-color:var(--muted)}.rx.me{background:var(--mention);border-color:var(--indigo)}
.rx img{width:18px;height:18px}.rx i{font-style:normal;font-size:13px;font-weight:600}
.tools{position:absolute;right:16px;top:-14px;background:var(--bg);border:1px solid var(--sel);border-radius:6px;display:none;box-shadow:0 2px 6px #0003;z-index:2}
.m:hover .tools,.m:focus-within .tools{display:flex}
.tools .ibtn{width:30px;height:28px;border-radius:0}.tools .ic{width:17px;height:17px}.tools .ibtn.dng:hover{color:var(--rose)}
.edit textarea{background:var(--input);resize:none;min-height:44px;padding:9px 12px}.edit small{color:var(--muted);font-size:12px}.edit a{cursor:pointer}
#composer{padding:0 16px 20px;flex-shrink:0}
#replybar,#filebar{background:var(--bg2);border-radius:8px 8px 0 0;padding:8px 14px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
#replybar b{color:var(--text)}#replybar .sp{flex:1}
#filebar{flex-wrap:wrap;gap:10px;padding:12px 14px;border-bottom:1px solid var(--sel)}
.fchip{position:relative;width:110px;background:var(--bg);border-radius:6px;padding:6px;text-align:center;font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.fchip img{width:100%;height:72px;object-fit:cover;border-radius:4px;display:block;margin-bottom:4px}
.fchip .fi{height:72px;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.fchip button{position:absolute;top:2px;right:2px;background:var(--rose);color:#fff;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center}
.fchip button .ic{width:12px;height:12px}
.cin{display:flex;align-items:flex-end;gap:6px;background:var(--input);border-radius:8px;padding:6px 8px}
#replybar:not([hidden])+#filebar+.cin,#filebar:not([hidden])+.cin,#replybar:not([hidden])+.cin{border-radius:0 0 8px 8px}
.cin textarea{background:none;resize:none;max-height:40vh;padding:8px 4px;line-height:1.4}
.plus{width:28px;height:28px;margin:4px 0;border-radius:50%;background:var(--muted);color:var(--input);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.plus:hover{background:var(--text)}.plus .ic{width:18px;height:18px}
.cin .ibtn{margin:2px 0}
#members{width:240px;background:var(--side);overflow-y:auto;padding:8px 8px 16px;flex-shrink:0}
#members .mh{font-size:12px;font-weight:700;color:var(--muted);padding:18px 8px 4px}
.mb{display:flex;align-items:center;gap:10px;width:100%;padding:5px 8px;border-radius:6px;text-align:left;cursor:pointer;color:var(--muted)}
.mb:hover{background:var(--hover);color:var(--text)}.mb img{width:32px;height:32px;border-radius:50%;flex-shrink:0}
.mb .n{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.mb .ic{width:16px;height:16px}.mb .tag{background:var(--indigo);color:#fff;font-size:10px;font-weight:700;padding:1px 5px;border-radius:3px}
.sh{color:var(--indigo)}.sh.r{color:var(--rose)}
#scrim{display:none}

/* modal */
#modal{position:fixed;inset:0;background:#000a;display:none;align-items:center;justify-content:center;padding:16px;z-index:60}
#modal.on{display:flex}
.mbox{background:var(--bg);border-radius:8px;width:100%;max-width:440px;max-height:92vh;overflow-y:auto;box-shadow:0 8px 30px #0008;padding:22px}
.mbox.sm{max-width:380px}.mbox.lg{max-width:560px}.mbox.zoom{max-width:96vw;background:none;box-shadow:none;padding:0;text-align:center}
.mbox.zoom img{max-width:96vw;max-height:88vh;border-radius:6px}
.mbox.pf{padding:0;overflow-x:hidden}
.mbox h3{font-size:20px;color:var(--head);text-align:center;margin-bottom:6px}
.mbox .mp{color:var(--muted);text-align:center;font-size:14px;margin-bottom:16px;overflow-wrap:anywhere}
.mbox label{display:block;font-size:12px;font-weight:700;color:var(--muted);margin:14px 0 6px}
.mbox .mf{display:flex;justify-content:flex-end;gap:8px;margin-top:20px;background:var(--bg2);margin:20px -22px -22px;padding:14px 22px;border-radius:0 0 8px 8px}
.pf .banner{height:70px;background:var(--indigo)}
.pf .pb{padding:0 18px 18px;margin-top:-34px}
.pf .pb>img{width:76px;height:76px;border-radius:50%;border:6px solid var(--bg);background:var(--bg)}
.pf h4{font-size:20px;color:var(--head);margin-top:4px}.pf .sub{color:var(--muted);font-size:13px;overflow-wrap:anywhere}
.pf .sec{background:var(--bg2);border-radius:8px;padding:12px;margin-top:12px}
.pf .sec h5{font-size:12px;color:var(--muted);margin-bottom:8px}
.pf .sec h5.mt0{margin-top:12px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 8px;border-radius:6px;background:var(--hover);font-size:12px;font-weight:600;border:1px solid transparent}
.chip i{width:10px;height:10px;border-radius:50%;background:var(--muted)}
button.chip{cursor:pointer;opacity:.6}button.chip.on{opacity:1;border-color:var(--indigo)}
.acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.note{font-size:12px;color:var(--muted);margin-top:8px}
.warn{color:#f0b232}
.row2{display:flex;gap:8px;align-items:center}.row2>*{flex:1}.row2>button{flex:0 0 auto}
.list{max-height:46vh;overflow-y:auto;margin-top:10px}
.li{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:6px;cursor:pointer}.li:hover{background:var(--hover)}
.li img{width:32px;height:32px;border-radius:50%}.li .n{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.li small{color:var(--muted);display:block;font-size:12px}
.tabs{display:flex;gap:6px;margin:10px 0 4px}.tabs button{padding:6px 12px;border-radius:6px;color:var(--muted);font-weight:600;font-size:14px}.tabs button.on{background:var(--sel);color:var(--head)}

/* popups */
#pop{position:fixed;z-index:80;display:none;background:var(--card);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px #0008;padding:6px;min-width:200px;max-width:92vw}
[data-theme=light] #pop{background:#fff;border-color:#dcdde0}
#pop.on{display:block}
.pi{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border-radius:4px;font-size:14px;font-weight:500;text-align:left;color:var(--muted)}
.pi .ic{width:16px;height:16px;margin-left:auto;order:2}
.pi:hover{background:var(--indigo);color:#fff}.pi.ind{color:#818cf8}.pi.dng{color:var(--rose)}.pi.dng:hover{background:var(--rose);color:#fff}
.pdiv{height:1px;background:var(--sel);margin:4px 2px}
.picker{width:330px}
.ptabs{display:flex;gap:2px;overflow-x:auto;padding-bottom:4px;border-bottom:1px solid var(--sel);scrollbar-width:none}
.ptabs button{padding:4px 7px;border-radius:4px;font-size:18px;flex-shrink:0;filter:grayscale(.6)}.ptabs button.on{background:var(--sel);filter:none}
.ptabs button img{width:20px;height:20px;border-radius:50%;vertical-align:middle}
.picker input{margin:6px 0;padding:7px 10px;font-size:13px}
#pgrid{height:220px;overflow-y:auto;display:grid;grid-template-columns:repeat(8,1fr);gap:2px;align-content:start}
#pgrid button{font-size:22px;padding:3px;border-radius:4px;line-height:1.2}#pgrid button:hover{background:var(--sel)}
#pgrid img{width:26px;height:26px}
#pgrid .gt{grid-column:1/-1;font-size:12px;font-weight:700;color:var(--muted);padding:6px 2px 2px}
#toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:#111214;color:#fff;padding:10px 16px;border-radius:6px;display:none;z-index:90;max-width:90vw;font-size:14px;box-shadow:0 4px 14px #0008}
#toast.err{background:#a12d2f}
.ttip{position:relative}

@media(max-width:1000px){
  #members{position:fixed;right:0;top:48px;bottom:0;z-index:40;transform:translateX(100%);transition:transform .2s;box-shadow:-4px 0 14px #0006;padding-bottom:70px}
  #members.open{transform:none}
}
@media(max-width:760px){
  .mob{display:inline-flex}
  #left{position:fixed;left:0;top:0;bottom:0;z-index:40;transform:translateX(-100%);transition:transform .2s;box-shadow:4px 0 14px #0006}
  #left.open{transform:none}
  #scrim.on{display:block;position:fixed;inset:0;background:#0007;z-index:35}
  .m{padding-left:62px;padding-right:12px}.m .av{left:10px}.m .tm{width:62px}
  #sidebar{width:min(240px,68vw)}
  .tools{right:8px}
  #composer{padding:0 8px 12px}
  #chead .tp{display:none}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}